diff --git a/vars/build.vars b/vars/build.vars
index 6c850bc..b22a72f 100644
--- a/vars/build.vars
+++ b/vars/build.vars
@@ -141,7 +141,8 @@ gl_cv_func_chown_follows_symlink=yes
 gl_cv_func_fchownat_nofollow_works=yes
 gl_cv_func_link_follows_symlink=yes
 gl_cv_func_linkat_nofollow=yes
-gl_cv_struct_dirent_d_ino=yes"};
+gl_cv_struct_dirent_d_ino=yes
+gl_cv_C_locale_sans_EILSEQ=yes"};
 
 #
 # Build target host_tools
@@ -1394,8 +1395,8 @@ bison chicken cparser diffutils flex lunix m4 make mandoc nasm patch patchutils 
 : ${PKG_CPARSER_CONFIGURE:=bcparser/configure};
 : ${PKG_CPARSER_CONFIGURE_ARGS:="--source-dir=../../cparser --prefix="};
 : ${PKG_CPARSER_NO_CLEAN_BASE_DIR:=1};
-: ${PKG_DIFFUTILS_SHA256SUM:=d621e8bdd4b573918c8145f7ae61817d1be9deb4c8d2328a65cea8e11d783bd6};
-: ${PKG_DIFFUTILS_VERSION:=3.6};
+: ${PKG_DIFFUTILS_SHA256SUM:=b3a7a6221c3dc916085f0d205abf6b8e1ba443d4dd965118da364a1dc1cb3a26};
+: ${PKG_DIFFUTILS_VERSION:=3.7};
 : ${PKG_DIFFUTILS_URL:=https://ftp.gnu.org/gnu/diffutils/diffutils-${PKG_DIFFUTILS_VERSION}.tar.xz};
 : ${PKG_FLEX_SHA256SUM:=e87aae032bf07c26f85ac0ed3250998c37621d95f8bd748b31f15b33c45ee995};
 : ${PKG_FLEX_VERSION:=2.6.4};